A5931-3 Description
The A5931-3 three-phase motor driver IC incorporates sensorless sinusoidal drive to minimize vibration for high speed server fans. Sensorless control eliminates the requirement for Hall sensors for server fan applications. A flexible closed-loop speed control system is integrated into the IC.
A5931-3 Key Features
- Closed-loop speed control
- Speed curve configuration via EEPROM
- Programmable deceleration time
- I2C serial port
- Sinusoidal modulation for reduced audible noise and
- Sensorless (no Hall sensors required)
- Low RDS(ON) power MOSFETs-3 A capability
- Minimal external ponents
- PWM speed input
- FG speed output